// @return result.Result<VersionStatus, error>
func writeVersion(repo *git.Repository, version string) result.Result {
oid := result.NewResult(repo.CreateBlobFromBuffer([]byte(version)))
return oid.FlatMap(func(oid interface{}) result.Result {
path := filepath.Join(gg.CommentRefBase, versionRef)
return result.NewResult(repo.References.Create(path,
oid.(*git.Oid), false, upgradeMessage))
}).FlatMap(func(ref interface{}) result.Result {
return result.NewSuccess(VersionStatusEqual)
})
}
// @return result.Result<VersionStatus, error>
func compareVersion(toolVersion, repoVersion string) result.Result {
errorMsg := fmt.Sprintf(toolInvalidError, toolVersion, repoVersion)
invalidErr := result.NewFailure(errors.New(errorMsg))
vt := result.NewResult(semver.Make(toolVersion)).RecoverWith(invalidErr)
vr := result.NewResult(semver.Make(repoVersion)).RecoverWith(invalidErr)
return result.Combine(func(values ...interface{}) result.Result {
vt, vr := values[0].(semver.Version), values[1].(semver.Version)
return comparisonStatus(vt.Compare(vr))
}, vt, vr)
}
// @return result.Result<string, error>
func readVersion(repo *git.Repository) result.Result {
path := filepath.Join(gg.CommentRefBase, versionRef)
ref := result.NewResult(repo.References.Lookup(path))
return ref.FlatMap(func(ref interface{}) result.Result {
oid := ref.(*git.Reference).Target()
return result.NewResult(repo.LookupBlob(oid))
}).FlatMap(func(blob interface{}) result.Result {
contents := blob.(*git.Blob).Contents()
return result.NewSuccess(string(contents))
})
}
// Open or create a search index
// @return result.Result<bleve.Index, error>
func openIndex(repoPath string, ifSuccess func(*git.Repository, bleve.Index) result.Result) result.Result {
storage := filepath.Join(repoPath, gc.CommentStorageDir)
indexPath := filepath.Join(storage, indexFilePath)
return gg.WithRepository(repoPath, func(repo *git.Repository) result.Result {
os.Mkdir(storage, 0700)
success := func(index interface{}) result.Result {
return ifSuccess(repo, index.(bleve.Index))
}
return result.NewResult(bleve.Open(indexPath)).Analysis(success, func(err error) result.Result {
mapping := bleve.NewIndexMapping()
index := result.NewResult(bleve.New(indexPath, mapping))
return index.FlatMap(success)
})
})
}
// Lookup a remote by name, performing a block if found
// @return result.Result<*git.Remote, error>
func WithRemote(repoPath, remoteName string, ifSuccess func(*git.Remote) result.Result) result.Result {
return WithRepository(repoPath, func(repo *git.Repository) result.Result {
return result.NewResult(repo.Remotes.Lookup(remoteName))
}).FlatMap(func(remote interface{}) result.Result {
return ifSuccess(remote.(*git.Remote))
})
}
func WithConfig(repoPath string, ifSuccess func(config *git.Config) result.Result) result.Result {
return WithRepository(repoPath, func(repo *git.Repository) result.Result {
return result.NewResult(repo.Config())
}).FlatMap(func(config interface{}) result.Result {
return ifSuccess(config.(*git.Config))
})
}
// Add a fetch refspec to a remote. Return true if added.
// @return result.Result<bool, error>
func AddFetch(repo *git.Repository, remote *git.Remote, fetchRef string) result.Result {
f := result.NewResult(remote.FetchRefspecs())
return f.FlatMap(func(fetches interface{}) result.Result {
if !contains(fetches.([]string), fetchRef) {
return BoolResult(true, repo.Remotes.AddFetch(remote.Name(), fetchRef))
}
return result.NewSuccess(false)
})
}
// Add a push refspec to a remote. Return true if added.
// @return result.Result<bool, error>
func AddPush(repo *git.Repository, remote *git.Remote, pushRef string) result.Result {
p := result.NewResult(remote.PushRefspecs())
return p.FlatMap(func(pushes interface{}) result.Result {
if !contains(pushes.([]string), pushRef) {
return BoolResult(true, repo.Remotes.AddPush(remote.Name(), pushRef))
}
return result.NewSuccess(false)
})
}
func diffRange(repo *git.Repository, commitRange *gg.CommitRange, contextLines uint32) result.Result {
return result.Combine(func(values ...interface{}) result.Result {
opts := values[2].(git.DiffOptions)
opts.ContextLines = contextLines
return result.NewResult(repo.DiffTreeToTree(
values[0].(*git.Tree),
values[1].(*git.Tree),
&opts))
}, commitTree(commitRange.Parent), commitTree(commitRange.Child), diffOptions())
}
func deleteReference(repo *git.Repository, comment *Comment, identifier string) error {
_, err := RefPath(comment, identifier).FlatMap(func(refPath interface{}) result.Result {
return result.NewResult(repo.References.Lookup(refPath.(string)))
}).Analysis(func(ref interface{}) result.Result {
return gg.DeleteReference(ref.(*git.Reference))
}, func(err error) result.Result {
return result.NewFailure(errors.New(commentNotFoundError))
}).Dematerialize()
return err
}
// Parse commits from commitish string, populating a CommitRange. If a
// single commit is matched, it is paired with its first parent commit
// or resolves to an error
//
// return result.Result<*git.Commit, error>
func ResolveCommits(repo *git.Repository, commitish string) result.Result {
return result.NewResult(repo.Revparse(commitish)).FlatMap(func(value interface{}) result.Result {
spec := value.(*git.Revspec)
return resolveCommit(repo, spec.From()).FlatMap(func(f interface{}) result.Result {
fromCommit := f.(*git.Commit)
return resolveCommit(repo, spec.To()).Analysis(func(t interface{}) result.Result {
toCommit := t.(*git.Commit)
return result.NewSuccess(&CommitRange{fromCommit, toCommit})
}, func(err error) result.Result {
return resolveCommitParent(fromCommit).FlatMap(func(parent interface{}) result.Result {
return result.NewSuccess(&CommitRange{parent.(*git.Commit), fromCommit})
})
})
})
})
}
// Find all comments matching text
// @return result.Result<[]*Comment, error>
func CommentsWithContent(repoPath, content string) result.Result {
return openIndex(repoPath, func(repo *git.Repository, index bleve.Index) result.Result {
query := bleve.NewQueryStringQuery(content)
request := bleve.NewSearchRequest(query)
return result.NewResult(index.Search(request)).FlatMap(func(match interface{}) result.Result {
hits := match.(*bleve.SearchResult).Hits
comments := make([]*gc.Comment, len(hits))
for idx, hit := range hits {
gc.CommentByID(repo, hit.ID).FlatMap(func(comment interface{}) result.Result {
comments[idx] = comment.(*gc.Comment)
return result.Result{}
})
}
return result.NewSuccess(comments)
})
})
}
// Parse a property string and create a person. The expected format is:
// ```
// Name <*****@*****.**>
// ```
// If a valid person cannot be created, an error is returned instead
// @return result.Result<*Person, error>
func CreatePerson(properties string) result.Result {
fullRe := regexp.MustCompile(`(?:(.*)\s)?<(.*@.*)>(?:\s([0-9]+)\s([\-+][0-9]{4}))?`)
match := fullRe.FindStringSubmatch(properties)
invalidErr := result.NewFailure(errors.New(invalidPersonError))
if len(match) == 0 {
return invalidErr
}
name, email := match[1], match[2]
timestamp := result.NewResult(strconv.ParseInt(match[3], 10, 64))
return timestamp.Analysis(func(value interface{}) result.Result {
stamp := time.Unix(value.(int64), 0)
person := &Person{match[1], match[2], stamp, match[4]}
return result.NewSuccess(person)
}, func(err error) result.Result {
timestamp := time.Now()
return result.NewSuccess(&Person{name, email, timestamp, timestamp.Format("-0700")})
})
}
// Write git object for a given comment and update the
// comment refs
// @return result.Result<*Comment, error>
func writeCommentToDisk(repo *git.Repository, comment *Comment) result.Result {
if comment.ID != nil {
if err := deleteReference(repo, comment, *comment.ID); err != nil {
return result.NewFailure(err)
}
}
return gg.CreateBlob(repo, comment.Serialize()).FlatMap(func(oid interface{}) result.Result {
id := fmt.Sprintf("%v", oid)
return RefPath(comment, id).FlatMap(func(file interface{}) result.Result {
commit := *comment.Commit
message := fmt.Sprintf(defaultMessageFormat, commit[:7], id[:7])
return result.NewResult(repo.References.Create(file.(string), oid.(*git.Oid), false, message))
}).FlatMap(func(value interface{}) result.Result {
comment.ID = &id
return result.NewSuccess(comment)
})
})
}
// Parse the commit hash of a single commit from a reference, converting to HEAD
// where needed
//
// return result.Result<*string, error>
func ResolveSingleCommitHash(repo *git.Repository, commitish string) result.Result {
return result.NewResult(repo.RevparseSingle(ExpandCommitish(commitish))).FlatMap(getObjectId)
}
func ConfiguredInt32(repoPath, name string, fallback int32) int32 {
return WithConfig(repoPath, func(config *git.Config) result.Result {
return result.NewResult(config.LookupInt32(name))
}).Recover(fallback).(int32)
}
func resolveCommit(repo *git.Repository, object git.Object) result.Result {
if object != nil && object.Type() == git.ObjectCommit {
return result.NewResult(repo.LookupCommit(object.Id()))
}
return result.NewFailure(errors.New(noCommitError))
}
func commitTree(commit *git.Commit) result.Result {
return result.NewResult(commit.Tree())
}
// @return result.Result<git.DiffOptions, error>
func diffOptions() result.Result {
return result.NewResult(git.DefaultDiffOptions())
}
func ConfiguredString(repoPath, name, fallback string) string {
return WithConfig(repoPath, func(config *git.Config) result.Result {
return result.NewResult(config.LookupString(name))
}).Recover(fallback).(string)
}
func ConfiguredBool(repoPath, name string, fallback bool) bool {
return WithConfig(repoPath, func(config *git.Config) result.Result {
return result.NewResult(config.LookupBool(name))
}).Recover(fallback).(bool)
}